Cr、V元素替代Nb元素对Fe_(40)Co_(40)Zr_8Nb_2B_(10)非晶合金热性能及结构的影响  

Influence of Cr and V Elements Instead of Nb Element on the Thermal Stability and Crystallization Process of Fe_(40)Co_(40)Zr_8Nb_2B_(10) Alloy

作　　者：王丽丽[1] 刘洁[1] 左斌[1] 于万秋[1] 华中[1] 

机构地区：[1]吉林师范大学功能材料物理与化学教育部重点实验室,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2012年第4期84-86,共3页Journal of Jilin Normal University:Natural Science Edition

基　　金：吉林省科技发展计划资助项目(201105083);吉林省教育厅"十二五"科学技术研究项目(2011-158);吉林师范大学研究生创新科研计划项目(201103)

摘　　要：采用单辊快淬法制备Fe40Co40Zr8Nb2B10、Fe40Co40Zr8Cr2B10和Fe40Co40Zr8V2B10非晶合金薄带,并对三种合金在不同温度下进行热处理.利用X射线衍射仪(XRD)和差热分析仪(DTA)等测试手段对样品的结构及热性能进行研究.结果表明,Fe40Co40Zr8Nb2B10、Fe40Co40Zr8Cr2B10和Fe40Co40Zr8V2B10合金的晶化激活能分别为302.6、306.6和299.3 kJ/mol,Cr元素和V元素替代Nb元素对合金的热稳定性影响不大,但扩大了合金的晶化温区.三种合金晶化过程相似:非晶→非晶+α-FeCo→α-FeCo+ZrCo3B2+Fe(Co)3Zr.Fe40Co40Zr8Nb2B10、Fe40Co40Zr8Cr2B10 and Fe40Co40Zr8V2B10 amorphous ribbons were prepared by the single roller melt-spinning and annealed at different temperatures.Structure and thermal ability of samples were investigated by X-ray diffraction（XRD） and differential thermal analysis（DTA）.The results showed that the crystallization activation energies were 302.6,306.6 and 299.3 kJ/mol.The Cr and V elements instead of the Nb element had not much effect on the thermal stability of alloy,but expanded the crystallization temperature zone.The crystallization processes of three alloys were similar：amorphous → amorphous＋α-FeCo→α-FeCo＋ZrCo3B2＋Fe（Co）3Zr.

关 键 词：纳米晶软磁材料 热稳定性 晶化过程 

分 类 号：TG156.21[金属学及工艺—热处理] TG132.27[金属学及工艺—金属学]